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Re: Current Control
Marshall -
Please make sure you have the latest firmware loaded. There was a small error in the calculations that was patched. I don't think it would create your issue, but you might as well check.
I'm unsure of what the units in the PID are. I tuned it as I tune any other PID loop: blindly.
1) Crank P until it oscillates, cut it in half (or more).
2) Crank I until it hits the set point "quick enough".
3) Mess with D and I until either
a) It looks good, or
b) I find something better to do.
It isn't a great method, but it has worked for me in the past. I'd suggest trying to remove the science from it and go at it from a "fiddle with the knobs" perspective.
Hopefully someone with more science will delete this post and put the real method up.
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